eth_maxPriorityFeePerGas on Arbitrum One
Returns a suggested EIP-1559 priority fee (miner tip) in wei. Combine with the latest block's base fee to build maxFeePerGas.
The tip half of an EIP-1559 fee. On quiet chains it's often near zero and buys nothing; on busy chains pair it with eth_feeHistory percentiles rather than a fixed constant.
Arbitrum One endpoint (public — no key)
https://rpc.nodeflare.app/arb/publicMethod
eth_maxPriorityFeePerGas
Cost
1 CU
Chain ID
42161
Block time
~250 ms
Finality
<1 s sequencer · L1-final ~13 min
Gas & fees on Arbitrum One
Arbitrum's sequencer is first-come-first-served: priority fees buy you nothing most of the time. The base fee floors at 0.01 gwei — eth_gasPrice is usually all you need.
Parameters
None.cURL
curl https://rpc.nodeflare.app/arb/public \
-X POST \
-H 'content-type: application/json' \
-d '{"jsonrpc":"2.0","method":"eth_maxPriorityFeePerGas","params":[],"id":1}'ethers.js
import { ethers } from 'ethers';
const provider = new ethers.JsonRpcProvider(
'https://rpc.nodeflare.app/arb/public'
);
const result = await provider.send('eth_maxPriorityFeePerGas', []);Try it live
Runs the example above against the public Arbitrum One endpoint — straight from your browser.
eth_maxPriorityFeePerGas on Arbitrum One — FAQ
How do I call eth_maxPriorityFeePerGas on Arbitrum One?
POST a JSON-RPC 2.0 request with "method": "eth_maxPriorityFeePerGas" to NodeFlare's Arbitrum One endpoint at https://rpc.nodeflare.app/arb/public. No API key is required for the public endpoint.
What does eth_maxPriorityFeePerGas cost on the free tier?
eth_maxPriorityFeePerGas is weighted at 1 compute unit per call. The free tier includes 2,000,000 CU/month, so that is roughly 2,000,000 eth_maxPriorityFeePerGas calls per month — no credit card.
Is eth_maxPriorityFeePerGas available on the public Arbitrum One endpoint?
Yes. eth_maxPriorityFeePerGas works on the public Arbitrum One endpoint (https://rpc.nodeflare.app/arb/public) with no API key, rate-limited per IP. A free key adds higher limits and a dedicated path.
Anything Arbitrum One-specific to know when using eth_maxPriorityFeePerGas?
Arbitrum's sequencer is first-come-first-served: priority fees buy you nothing most of the time. The base fee floors at 0.01 gwei — eth_gasPrice is usually all you need.
Call eth_maxPriorityFeePerGas on Arbitrum One with a free key
2,000,000 compute units/month, heavy methods unlocked, every chain included. No credit card.
Get your free API key →eth_maxPriorityFeePerGas on other chains